Leaf-turner.



R. WLGODDARD.

LEAF TURNER.

APPLICATION FILED 001'. so, 1912.

1,1 16,412. Patented Nov. 10, 1914.

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THE NORRIS PETERS 60., PHDTO-LITHQ. WASHING TON. D. C

UNITED STATES PATENT OFFICE.

ROY W. GODDARD, OF JONESBORO, ARKANSAS.

LEAF-TURNER.

To all whom it may concern:

Be it known that I, ROY W. GODDARD, a citizen of the United States, residing at Jonesboro, in the county of Craighead and State of Arkansas, have invented certain new and useful Improvements in Leaf-Turners, of which the following is a specification.

This invention relates to an improved apparatus for turning-over the leaves of a. book, more especially a music book held on a rack or music stand, and of the type in which centrally operated bifurcated arms reach over from behind the rack and take in the leaves to be turned, each of the said arms being controlled by a pinion that engages with a corresponding segmental gearing on the face of a master-wheel whereby each arm can be operated independently of the others, there being no two pinions in mesh with the master-wheel at the same time.

The objects of my improvement are; first, to provide hinged arms that can be lowered or raised in order to place them within the book without straining the said arms; second, to provide bifurcations on the outer ends of the arms so as to have a prong on each side of the page to be turned; third, to provide a mechanism that shall be located at the back of the rack where it can be out of sight and completely out of the way; fourth, to provide means for working each and every arm either to the right or to the left independently of the others; fifth, to provide an adjustable ledge for the book to rest on, one that may be raised or lowered according to the height of the book so as to bring the leaves close to the upper ends of the bifurcated arms and thus secure a positive turnover for each leaf irrespective of the height of the book. I attain these objects by the mechanism illustrated in the accompanying drawing, in which Figure 1 is a side elevation of the leaf. turner; Fig. 2, a rear elevation of the same; Fig. 3, a plan of the spring; Fig. 4:, aside elevation of Fig. 3; Fig. 5, a front View of the arm-crank; Fig. 6, a side view of Fig. 5; Fig. 7 a reduced front view of the rack; Fig. 8, a plan of Fig. 7; Fig. 9, a broken, end view of Fig. 7 Fig. 10, a front view of a bifurcated turning arm.

Similar letters refer to similar parts throughout the several views.

Referring to Fig. 1, the rack or stand A constitutes the framework to which the leaf- Specification of Letters Patent.

Application filed October 30, 1912.

Patented Nov. 10, 1914. Serial No. 728,638.

turner is attached. The frame of the leafturner, denoted B is securely attached to the stand A by the screws 0 and serves to hold all the parts of the leaf-turner proper in their assembled positions. The upper part of 13 carries the pinion shaft (Z on which rotate the pinions 6, 6 e and e carrying respectively the arm-cranks 7, 7, f and f (one being shown in detail in Figs. 5 and 6 to which are attached respectively the bifurcated turning-arms g, g g and g by a hinged connection. The pinion shaft (Z is fixed and the pinions 6, 6 c and e are rotatable upon it, but not freely so, as they are held under a moderate tension by the friction-washers h, 72. k and 7& which prevent the pinions aforesaid slipping at random about the shaft d although they may be easily rotated when in gear with their segmental counterparts 2', 2' 2' and 2' situated on the inner side of the master wheel 7' which latter rotates on the pivot is and preferably under the control of the friction washer Z.

Referring to Fig. 2, the segmental gears 2', 2' 2' and 2' which are shown in dotted outlines are seen to be arranged on the surface of the master-wheel j at different radial distances from the center of the masterwheel, by which arrangement the pinions can each and severally be actuated in either direction independently of the others by applying intermittent rotation in either direction to the master-wheel j, which latter it will be observed is furnished with a plurality of stop-studs 25, t t t 2 and t situated at intervals around its outer edge, the use of which will be explained.

The rotation of the master-wheel is accomplished in the following manner: Assuming that an upward stroke be given the plunger n it will as it rises be deflected from the vertical over to the right while the surface of the deflecting-spur g is passing the deflecting-latch r and it will also be pressing against the spring a which resists it. In its travel upward just before the deflectingspur g passes the deflecting-latch r the upper point of the plunger 91- will engage on the right hand side of the stop-stud v, immediately the deflecting-spur 9 passes the defleeting-latch r the spring 8 exerts its energy and brings the plunger a back to the vertical position, in which position its upward stroke is finished. On the return stroke the lower surface of the deflecting-spur gstrikes the sloping upper surface of the deflectinglatch a", which, is denoted r causing the deflecting-latch 1 to trip and thus allow the plunger n to return to the first position. It

will be observed that on the upward stroke the deflecting-latch 1" presents a rigid abutment to the deflecting-spur g by reason of the lower end of the latch lying against the latch-pin 1. It is obvious that if a similar stroke were given by the plunger 02 the master-wheel would be rotated a similar distance but in the opposite direction. It will be clear from the foregoing that each stroke of either of the plungers carries one of the turning-arms across the face of the rack and if the said turning-arm were en-- gaging the leaf of a book the leaf would be positively turned in either one direction or the other according to whichever of the plungers n or a should be used to give the impulse. The power necessary to actuate the said plungers could be applied by either hand or foot or in any other suitable manner so long as a downward motion were applied to the rod 0.

As illustrated the leaf-turner is shown with four turning-arms but a larger number could be arranged for if desired.

Fig. 7 shows, on a reduced scale, an elefor engaging the leaves of a book, and means vation of the rack or stand A with a flexible cord or spring u to hold the book in place and as this is old I do not claim it as part of my invention.

The ledge 42 on which the book rests is adjustable to books of different heights by means of the guidesw and w and the set screws 90 and 00 Having thus fully described my invention in, presence of I wish it to be fully understood that I do not claim a leaf-turner broadly; but- I claim:

A music leaf turner, comprising in combination, a frame, a series of pinions of varied diameter carried by said frame, a wheel carried by said frame, having on its front surface a series of segments of gears at difierent radii from the center thereof and in progressive relation to each other, pins mounted on the back surface of said wheel and disposed at equal radii from the center thereof and at equal circumferential intervals thereon, means consisting of angle arms oppositely disposed and operating in an upward direction adapted to engage said pins thereby imparting a rotative motion in either direction to said wheel, and causing said pinions to be consecutively rotated, deflecting spurs mounted on said angle arms, latches mounted on said frame and engaging the said deflecting spurs in the upward movement of the said angle arms thereby defleeting them out of their normal vertical position, whereby they are caused to engage said pins; spring means for restoring said angle arms to their normal position, crank arms connected to said pinions, bifurcated arm means connected to said crank arms for holding said leaves in position to be operated by said bifurcated arms.-

In testimony whereof I affix my signature two witnesses. ROY WV. GODDARD. [L. s.] WVitnesses:

BYRON Monsn,

MINOR M. MARKLE.

Copies of this patent may be obtained for five cents; each, byaddressing the Commissioner of Patents,

Washington, I). G. 

